Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
primary 5 | Maths
| Whole Numbers
2 Answers Below
Anyone can contribute an answer, even non-tutors.
Please help? Thank you
Date Posted: 3 years ago
Views: 276
The sum of areas of A and B is equal to the sum of areas of C and D, since we have a rectangle being cut along its diagonal.
But A : B = 3 : 5 and B : C is 2 : 3.
B cannot be "5" and "2" at the same time, so we must make them "10".
A : B = 6 : 10
B : C = 10 : 15
So, A is 6 units.
B is 10 units.
C is 15 units.
A + B is 16 units.
C + D is also 16 units.
So, D
= 16 - 15
= 1 unit
So, A : D is 6 : 1.
But A : B = 3 : 5 and B : C is 2 : 3.
B cannot be "5" and "2" at the same time, so we must make them "10".
A : B = 6 : 10
B : C = 10 : 15
So, A is 6 units.
B is 10 units.
C is 15 units.
A + B is 16 units.
C + D is also 16 units.
So, D
= 16 - 15
= 1 unit
So, A : D is 6 : 1.
See 2 Answers
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Hope this helps!
Date Posted:
3 years ago
Yes! Thank you!
:p
360 Tutoring Program